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JAMA Network Open Sep 2023Contralateral breast cancer (CBC) is the most frequently diagnosed primary cancer in patients with breast cancer. Although many studies have reported survival after the...
IMPORTANCE
Contralateral breast cancer (CBC) is the most frequently diagnosed primary cancer in patients with breast cancer. Although many studies have reported survival after the development of CBC, results have been inconsistent.
OBJECTIVE
To investigate whether the development of CBC is associated with survival among patients with breast cancer.
DESIGN, SETTING, AND PARTICIPANTS
This cohort study was conducted at the Asan Medical Center, Korea, among patients who were diagnosed with primary unilateral, nonmetastatic, stage 0 to III breast cancer between 1999 and 2013 and followed up through 2018. The median (IQR) follow-up was 107 (75-143) months. Patients were categorized into CBC and no-CBC groups by whether they developed CBC during the follow-up period. Data were analyzed from November 2021 to March 2023.
EXPOSURE
Development of CBC.
MAIN OUTCOMES AND MEASURES
Survival rates of CBC and no-CBC groups were compared using a time-dependent Cox proportional hazard model in the entire study population and in subgroup analyses by interval of CBC development and subtype of the primary breast cancer.
RESULTS
Among 16 251 patients with breast cancer (all Asian, specifically Korean; mean [SD] age, 48.61 [10.06] years), 418 patients developed CBC. There was no significant difference in overall survival between CBC and no-CBC groups (hazard ratio, 1.166; 95% CI, 0.820-1.657). Patients who developed CBC within 1.5 years after the surgery of the primary breast cancer had a higher risk for overall death during the study period (hazard ratio, 2.014; 95% CI, 1.044-3.886), and those who developed CBC after 1.5 years showed no significant difference in survival compared with the no-CBC group. Patients with hormone receptor (HR)-positive and human epidermal growth factor receptor 2 (ERBB2, formerly HER2)-negative breast cancer had a higher risk for overall death in the CBC group (hazard ratio, 1.882; 95% CI, 1.143-3.098) compared with the no-CBC group.
CONCLUSIONS AND RELEVANCE
This study found that development of CBC in patients with breast cancer was not associated with survival but that early development of CBC after diagnosis of the primary breast cancer or development of CBC in patients with HR-positive/ERBB2-negative breast cancer was associated with survival. These results may provide valuable information for patients seeking advice on opting for contralateral prophylactic mastectomy.
Topics: Humans; Middle Aged; Cohort Studies; Mastectomy; Republic of Korea; Breast Neoplasms; East Asian People; Adult
PubMed: 37707815
DOI: 10.1001/jamanetworkopen.2023.33557 -
Future Science OA Sep 2021
PubMed: 34295542
DOI: 10.2144/fsoa-2021-0071 -
Genes and Environment : the Official... Dec 2023The number of breast cancer patients is increasing worldwide. Furthermore, breast cancer often develops in young people, even those only in their 30s, who play a central... (Review)
Review
The number of breast cancer patients is increasing worldwide. Furthermore, breast cancer often develops in young people, even those only in their 30s, who play a central role in their families and society. Results from many cohort studies suggest that dietary factors, alcohol consumption, lack of physical activity, obesity, nulliparity, breastfeeding, oral contraceptive use, fertility treatment and hormone replacement therapy are risk factors for breast cancer. However, the effects of lifestyle habits on the human body are complexly intertwined with various factors, and the effects vary from person to person depending on their constitution, etc., so there is no basis for this. Therefore, primary prevention of breast cancer is still not being implemented appropriately and efficiently. Furthermore, advances in genomic technology make it possible to assess the risk of developing breast cancer in some individuals. As a result, the establishment of breast cancer prevention methods has become a health priority for high-risk individuals.Drugs such as tamoxifen and raloxifene are known to prevent the development of breast cancer, based on the results of multiple randomized controlled trials, but there are concerns regarding the side effects of these powerful agents. In addition, several clinical studies have shown that prophylactic mastectomy for women who have BRCA mutations or who are identified as being at high risk reduces the incidence of breast cancer development. However, many issues, such as changes in long-term quality of life after preventive surgery, the optimal timing of surgery and the identification of women who are at high risk but will not develop breast cancer, remain uncertain. In other words, although many researchers have focused on chemoprevention and surgical prevention and clear preventive effects of these strategies have been confirmed, it cannot be said that they are widely accepted. Therefore, the current evidence for chemoprevention and surgical prevention, as well as highlights of several interesting lines of research currently underway, are summarized in this article.
PubMed: 38082340
DOI: 10.1186/s41021-023-00287-0 -
Breast (Edinburgh, Scotland) Feb 2024In women at high risk of developing breast cancer, bilateral prophylactic mastectomy (BPM) significantly reduces the risk; simultaneously, breast reconstruction... (Review)
Review
In women at high risk of developing breast cancer, bilateral prophylactic mastectomy (BPM) significantly reduces the risk; simultaneously, breast reconstruction preserves body integrity. Given the complex and personal nature of such surgical procedures, patient assessment of satisfaction and health-related quality of life (HRQoL) is essential in evaluation of surgical outcomes. With this review, we aim to organize the current knowledge on patient-reported outcomes (PROs) in bilateral prophylactic surgery. Literature search was conducted using the databases Google Scholar, PubMed, and Web of Science to address the following questions, which can help clinicians and women undergoing the procedures navigate their healthcare decision-making process: How does BPM with reconstruction influence cancer-related distress? How does the surgery impact patient satisfaction and HRQoL? How do preoperative PROs differ from postoperative outcomes? Does the type of BPM and the type of reconstruction impact patient satisfaction and HRQoL? Furthermore, we summarize available patient-reported outcome measures (PROMs) that can be administered to women undergoing BPM with reconstruction. In addition, we discuss possible future directions for PRO research in prophylactic breast surgery.
Topics: Female; Humans; Mastectomy; Prophylactic Mastectomy; Breast Neoplasms; Quality of Life; Mammaplasty; Patient Satisfaction; Patient Reported Outcome Measures
PubMed: 37995427
DOI: 10.1016/j.breast.2023.103602 -
Breast Care (Basel, Switzerland) Aug 2019Prophylactic mastectomies in carriers of mutations in or are becoming increasingly more accepted. We investigated the outcome after prophylactic mastectomy, especially...
BACKGROUND
Prophylactic mastectomies in carriers of mutations in or are becoming increasingly more accepted. We investigated the outcome after prophylactic mastectomy, especially regarding satisfaction with the procedure, in a monocenter study.
METHODS
mutation carriers and non-carriers with elevated pedigree-based cancer risk were followed prospectively in a structured surveillance program between 2000 and 2017. A retrospective telephone survey was conducted among all patients with documented prophylactic mastectomy. Complications and satisfaction with the decision for prophylactic mastectomy were recorded.
RESULTS
39 patients who opted for a prophylactic mastectomy (38 mutation carriers and 1 non-carrier) were interviewed. Mostly nipple-sparing mastectomy with reconstruction was performed (87%). Half of the patients (22/39; 56.4%) had a history of unilateral breast cancer. The median time since prophylactic mastectomy was 5.6 years. While 61.5% did not report any complications, flap loss was seen in 15% (3/20) and moderate limitations in everyday life were present in 20% (7/35). An improvement in quality of life was noticed by 82% after prophylactic mastectomy and no patient expressed regret with regard to the decision.
CONCLUSIONS
Prophylactic mastectomy is a procedure with risk for long-term complications in some cases. Our results confirm high satisfaction with the decision and improved quality of life.
PubMed: 31558896
DOI: 10.1159/000496398 -
Surgery Today Jun 2021Advances in multi-modality treatments incorporating systemic chemotherapy, endocrine therapy, and radiotherapy for the management of breast cancer have resulted in a... (Comparative Study)
Comparative Study Review
Advances in multi-modality treatments incorporating systemic chemotherapy, endocrine therapy, and radiotherapy for the management of breast cancer have resulted in a surgical-management paradigm change toward less-aggressive surgery that combines the use of breast-conserving or -reconstruction therapy as a new standard of care with a higher emphasis on cosmesis. The implementation of skin-sparing and nipple-sparing mastectomies (SSM, NSM) has been shown to be oncologically safe, and breast reconstructive surgery is being performed increasingly for patients with breast cancer. NSM and breast reconstruction can also be performed as prophylactic or risk-reduction surgery for women with BRCA gene mutations. Compared with conventional breast construction followed by total mastectomy (TM), NSM preserving the nipple-areolar complex (NAC) with breast reconstruction provides psychosocial and aesthetic benefits, thereby improving patients' cosmetic appearance and body image. Implant-based breast reconstruction (IBBR) has been used worldwide following mastectomy as a safe and cost-effective method of breast reconstruction. We review the clinical evidence about immediate (one-stage) and delayed (two-stage) IBBR after NSM. Our results suggest that the postoperative complication rate may be higher after NSM followed by IBBR than after TM or SSM followed by IBBR.
Topics: Adult; Aged; Breast Implantation; Breast Implants; Breast Neoplasms; Combined Modality Therapy; Cost-Benefit Analysis; Female; Humans; Mammaplasty; Mastectomy, Segmental; Middle Aged; Mutation; Nipples; Organ Sparing Treatments; Prophylactic Mastectomy; Safety; Treatment Outcome; Ubiquitin-Protein Ligases
PubMed: 33185799
DOI: 10.1007/s00595-020-02175-4 -
Plastic and Reconstructive Surgery.... May 2022The effects of recent initiatives to better educate unilateral breast cancer (UBC) patients about contralateral prophylactic mastectomy (CPM) have not been fully...
BACKGROUND
The effects of recent initiatives to better educate unilateral breast cancer (UBC) patients about contralateral prophylactic mastectomy (CPM) have not been fully examined. The purpose of this study was to update and examine recent annual CPM trends by evaluating 2015-2020 data from a large administrative claims database. We also sought to determine if there were any variations in trends among different age groups and reconstructive modalities.
METHODS
Patients diagnosed with UBC between 2015 and 2019 were identified in Optum Clinformatics DataMart. Patients were then categorized by age group, whether they underwent CPM, whether they underwent breast reconstruction (BR), timing of any BR (immediate or delayed), and type of BR (implant-based or autologous).
RESULTS
Of 55,060 patients who were diagnosed with UBC, 2625 (4.8%) underwent CPM. After a slight decline from 2015 to 2016, the CPM rate among UBC patients increased significantly from 3.4% in 2016 to 6.8% in 2019. Although this upward trend remained consistent across all age groups examined, younger UBC patients represented a significantly higher and faster growing percentage of those undergoing CPM. BR rates among those who underwent CPM also increased between 2015 and 2019, with implant-based and immediate BR becoming more heavily favored over autologous and delayed BR.
CONCLUSIONS
CPM rates continued to rise between 2016 and 2019 and younger women represented a substantially higher and faster growing percentage of UBC patients undergoing CPM than older women. In addition, implant-based and immediate BR are becoming more heavily favored over autologous and delayed BR.
PubMed: 35646492
DOI: 10.1097/GOX.0000000000004344 -
Annals of Translational Medicine Dec 2020The past two decades have witnessed the increasing application of contralateral prophylactic mastectomy (CPM) for women with breast cancer in the western countries. Over...
BACKGROUND
The past two decades have witnessed the increasing application of contralateral prophylactic mastectomy (CPM) for women with breast cancer in the western countries. Over 30% of young patients choose to underwent CPM up to 2015. However, the adoption rate of CPM has not shown a remarkably increasing in Asian countries. In China, only a few centers have introduced CPM, and no relevant literature has been published. In this study, we look forward to identify the clinical features and prognostic factors of women who underwent CPM in our hospital, to inform decision-making processes for both doctors and patients.
METHODS
The clinical data of 58 eligible patients were retrospectively analyzed. Intergroup comparisons were based on independent samples -test and chi square test. The 5-year disease-free survival (DFS) and overall survival (OS) were obtained by using life tables, and factors affecting the survivals were analyzed by using the Kaplan-Meier method.
RESULTS
The mean age of these women was 40.14±11.17 years, with 30 patients (51.7%) being ≤40 years; 13 patients (22.4%) had a family history of breast cancer; and 49 (69.0%) had known risk factors for breast cancer. The median follow-up period was 66.77 months, the 5-year OS was 89% and the 5-year DFS was 74%. The average age of onset was 41.53 (±10.964) in the disease-free survival group and 34.18 (±10.4) years in the recurrence/metastasis group, and -test revealed a significant difference in the average age between these two groups (P=0.049). Chi-square test showed that the disease progression rate significantly differed among the different age subgroups and among subjects with different body mass index (BMI) (all P≤0.05). Moreover, surgical procedure, family history of breast cancer, and some other factors showed no significant correlation with disease progression (all P>0.05). Kaplan-Meier survival analysis and log rank test further confirmed the above findings.
CONCLUSIONS
The majority of patients who choose CPM are young and with known risk factors for breast cancer. Part of the young patients (≤40 years of age) are at a higher risk of disease progression.
PubMed: 33490177
DOI: 10.21037/atm-20-7780 -
Gland Surgery Aug 2023Identification of ideal candidates for prepectoral versus retropectoral implant-based breast reconstruction relies on careful preoperative risk assessment and... (Review)
Review
BACKGROUND AND OBJECTIVE
Identification of ideal candidates for prepectoral versus retropectoral implant-based breast reconstruction relies on careful preoperative risk assessment and intraoperative flap evaluation. Few guidelines exist to guide the surgeon's decision-making process when evaluating the preferred plane for implant placement.
METHODS
A literature review was performed to develop clinical decision-making algorithms for direct-to-implant (DTI) reconstruction with acellular dermal matrix (ADM) for patients undergoing prophylactic or therapeutic nipple-sparing mastectomy (NSM) based on patient characteristics, surgical techniques, and outcomes.
KEY CONTENT AND FINDINGS
Prepectoral reconstruction is most suitable for patients with small breasts or macromastia with desire for breast reduction, low-grade ptosis, smaller implant sizes, those undergoing PMRT, and for those who aim to mitigate animation deformity and capsular contracture. Retropectoral reconstruction may be recommended for patients with larger breasts with no desire for size change requiring additional prosthesis support, and in patients who aim to reduce likelihood of rippling and need for subsequent fat grafting procedures to address contour abnormalities.
CONCLUSIONS
Careful preoperative and intraoperative assessment of reconstruction options for patients undergoing implant-based breast reconstruction is necessary to mitigate complications and produce superior aesthetic outcomes. Decision algorithms may be used to determine ideal surgical techniques based on patient factors, like radiation history and planning, breast size and ptosis, and patient preferences.
PubMed: 37701292
DOI: 10.21037/gs-23-78 -
Asian Journal of Surgery Jan 2024Metaplastic breast cancer (MBC) is considered rare and aggressive. We examined the epidemiology of and prognostic factors for MBC and investigated the effect of...
INTRODUCTION
Metaplastic breast cancer (MBC) is considered rare and aggressive. We examined the epidemiology of and prognostic factors for MBC and investigated the effect of contralateral prophylactic mastectomy (CPM), because neither had been thoroughly examined previously.
METHODS
We obtained data from the Surveillance, Epidemiology, and End Results (SEER)-18(2000-2018) for epidemiological and survival analysis.
RESULTS
The age-adjusted incidence per 100,000 persons of MBC increased significantly from 0.12 to 0.35 [annual percent change (APC):2.95%, 95% confidence interval [CI], 1.73-4.19]. The incidence-based mortality increased from 0.01 to 0.12 (APC: 5.01%, 95% CI: 2.50-7.58). The incidence of MBC patients who underwent CPM significantly increased from 0.003 to 0.039 with an APC of 10.96% (95%CI, 7.26-14.78). Older patients and those with higher T classification were less likely to receive CPM. The multivariate Cox model showed that CPM was not an independent predictor of good prognosis for both overall survival (OS) and breast cancer-specific survival (BCSS) (pre-propensity score matching (PSM): OS: P = 0.331; BCSS: P = 0.462. post-PSM: OS: P = 0.916; BCSS: P = 0.967). Subgroup analysis showed that CPM still did not provide a survival benefit to any risk groups.
CONCLUSION
In this study, we demonstrated that the incidence and incidence-based mortality of MBC have increased over the past decades. Although the number of MBC patients who underwent CPM has significantly increased recently, CPM did not confer a survival benefit compared with unilateral mastectomy, indicating that the decision to undergo CPM should be considered carefully.
Topics: Humans; Female; Breast Neoplasms; Mastectomy; Prophylactic Mastectomy; Incidence; SEER Program
PubMed: 37739898
DOI: 10.1016/j.asjsur.2023.09.053